Figure 3.

ROC curves using clinical attributes plus 160 SNPs as predictors. The red curve is obtained for the training of the Stage 1 samples, the blue curve
is for the testing of the Stage 2 samples, the grey diagonal line is a theoretical
curve representing random guess. Both the red and the blue curves are higher than
the grey line, indicating better than random prediction; and they are similar to each
other, suggesting the true predictability of the RF model. The p-value for the independent
testing AUC to be different from 0.5 is 0.000266.